If a former player competes against his old team with his new team it makes sense that the player might tip off his new team about some of the tendencies of his old team. Seems pretty basic right?

Maybe so but that didn't stop the Lions from reportedly taking advantage of the Bears during Detroit's 40-32 win against Chicago on Sunday.

A few Bears players told ESPN Chicago that they thought defensive end Israel Idonije who had played with the Bears from 2004-12 had tipped off his new Lions teammates about some of Chicago's line calls.